How long Mercury take to complete one orbit?
Answer
88 Earth days
Mercury circles the Sun in 88 Earth days, the shortest year of any planet. It turns on its axis once every 59 Earth days, three rotations for every two orbits, and the two motions combine so that a single sunrise-to-sunrise day on Mercury lasts about 176 Earth days, or two full Mercury years.
| Category | Space |
|---|---|
| Difficulty | Easy |
| Other options in the game | 24 Earth days, 225 Earth days, 365 Earth days |
| Source | NASA Science: Mercury |
How the game asks it
How long does Mercury take to complete one orbit around the Sun? The other options offered are 24 Earth days, 225 Earth days, 365 Earth days.
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